US Bridges

Bells Mill Road over Sewickley Creek

FairPosted for load

Westmoreland County, Pennsylvania · 1/2 MI East of SR 136 · Structure no. 000000000036964

Built
1850
175 years old, rebuilt 1988
Condition
Fair
inspected June 2024
Type
Truss - Thru
Wood or Timber
Length
99 ft
1 main span
Daily traffic
1,100
2022 count
Owner
County
County Highway Agency

About this bridge

Bells Mill Road over Sewickley Creek is a wood or timber truss - thru carrying Bells Mill Road over Sewickley Creek in Westmoreland County, Pennsylvania. It was built in 1850 and reconstructed in 1988, so it is 175 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,100 vehicles a day, roughly 1% of them trucks, projected to reach 1,400 by 2042. The structure is 99 ft (30.2 m) long and 15 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBells Mill Road
CrossesSewickley Creek
Location1/2 MI East of SR 136
RouteCity Street 3061
Coordinates40.21931, -79.71006
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating11 US tons
Inventory rating8 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length99 ft (30.2 m)
Longest span93 ft (28.3 m)
Deck width15 ft (4.7 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deck6 ft (2 m)

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,400 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bells Mill Road over Sewickley Creek built?

It was built in 1850, making it 175 years old in 2025. It was reconstructed in 1988.

What condition is Bells Mill Road over Sewickley Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Bells Mill Road over Sewickley Creek carry?

About 1,100 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Bells Mill Road over Sewickley Creek?

The structure is 99 ft (30.2 m) long with a longest span of 93 ft (28.3 m) and a deck 15 ft wide.

Who owns Bells Mill Road over Sewickley Creek?

It is owned by the County Highway Agency.